From Chapter 2:
It chaunc'd me gazing at the Theater,
To spie a Lock-Tabacco Chevalier
Clowding the loathing ayr with foggie fume
Of Dock Tobacco friendly foe to rhume—

says a versifier of 1599, who did not like smoking in the theatre and so abused the quality of the tobacco smoked—though admitting its medicinal virtue. Dekker suggests, probably with truth, that one reason why the young gallant liked to push his way to a stool on the stage, notwithstanding "the mewes and hisses of the opposed rascality"—the "mewes" must have been the squeals or whistles produced by the instrument which was later known as a cat-call—was the opportunity such a prominent position afforded for the display of "the best and most essential parts of a gallant—good cloathes, a proportionable legge, white hand, the Persian lock, and a tolerable beard." Apparently, too, serving-boys were within call, and thus lights could easily be obtained, which were handed to one another by the smokers on the points of their swords.

From Chapter 6:
Even children seem to have smoked sometimes in the coffee-houses. Ralph Thoresby, the Leeds antiquary, tells a strange story. He declares that, one evening which he spent with his brother at Garraway's Coffee-house, February 20, 1702, he was surprised to see his brother's "sickly child of three years old fill its pipe of tobacco and smoke it as audfarandly as a man of three score; after that a second and a third pipe without the least concern, as it is said to have done above a year ago." A child of two years of age smoking three pipes in succession is a picture a little difficult to accept as true. As this is the only reference to tobacco in the whole of his "Diary," it is not likely that Thoresby was himself a smoker.